Wearing a face covering has become an important measure in the fight to stop the spread of coronavirus.
Wearing a face covering in settings where it is requested, such as in shops or on public transport, helps prevent transmission of the virus and protects others.
You could face a fine of up to £100 if you do not comply with the regulations, which will be enforced by the police.
Children under 11 and people with certain disabilities are exempt from the measure.
Disposable or washable face coverings are widely available to buy or you can cover your nose and mouth with a scarf.
Cllr Sean Donnelly, Knowsley Council Cabinet Member for Health and Social Care, said: “Everyone has a part to play in helping to tackle coronavirus and that includes wearing a face covering where it is requested. We need to consider the health of everyone when we leave the home. Taking a face covering with you if and when you leave the house should become part of your daily routine like taking your keys or your wallet or purse. Simple measures like adhering to social distancing, regular hand washing and wearing a face covering where requested will go a long way to protecting you and those around you.”
A list of settings where you are required to wear a face covering can be found here.